Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 636 [Rate centres in NPA 636] [Dial plan for NPA 636]

NXX: 407

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-407 A De Soto MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2024-05-21   
636-407 0 De Soto MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2024-05-21   
636-407 1 De Soto MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2024-05-21   
636-407 8 De Soto MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2024-07-06   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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